Dual-Fuel Diesel Engine Using Butane

Paper #:
  • 920690

Published:
  • 1992-02-01
Citation:
Goto, S., Furutani, H., and Delic, R., "Dual-Fuel Diesel Engine Using Butane," SAE Technical Paper 920690, 1992, https://doi.org/10.4271/920690.
Pages:
8
Abstract:
The authors tried to use LP gas, mainly butane, as the main fuel of diesel engines to reduce soot and to maintain high thermal efficiency. LP gas was injected in the direction of the intake valve directly as a spray to prevent knocking and to preserve high charging efficiency. The newly developed electronic fuel injection provided accurate fuel control and injection timing. As a result, the dual-fuel operation produced high thermal efficiency almost identical to that of diesel engines. Soot in engine exhaust was almost negligible. Three quarters of maximum output was obtained with butane, and only small amount of gas oil for idling, in spite of an high compression ratio of 17 for gas engines. Increasing the proportion of gas oil resulted in maximum output from a diesel engine and almost no soot output.
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